| 摘要 |
PURPOSE:To prevent an incomplete combustion of a burner and improve its safety by a method wherein ion electrode for use in sensing ion current is arranged adjacent to a combustion plate. CONSTITUTION:An ion electrode 5 is arranged from the downstream opening of a combustion chamber 6 to adjacent to a combustion plate 4 in such a way as it may be substantially parallel with the plate, and further electrically connected to an outer cylinder 3 through DC power supply 8 and an output taking-out resistor 7. At first, injection of fuel from the fuel nozzle 1 causes all the air required for combustion to be suctioned as a primary air under an ejector effect of fuel, uniformly mixed in a mixing pipe 2 and then the fuel is injected from the net combustion plate 4. The mixture gas is ignited with an igniter device to form a flage. In this way, formation of flame causes ion current to be flowed between the ion electrode 5 and the combustion plate 4 and the combustion is confirmed by a voltage produced at both ends of the resistor 7. |
